Association between time of day and CPR quality as measured by CPR hemodynamics during pediatric in-hospital CPR

for the Eunice Kennedy Shriver National Institute of Child Health Human Development Collaborative Pediatric Critical Care Research Network Pediatric Intensive Care Quality of Cardiopulmonary Resuscitation (PICqCPR) investigators

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Introduction: Patients who suffer in-hospital cardiac arrest (IHCA) are less likely to survive if the arrest occurs during nighttime versus daytime. Diastolic blood pressure (DBP) as a measure of chest compression quality was associated with survival from pediatric IHCA. We hypothesized that DBP during CPR for IHCA is lower during nighttime versus daytime. Methods: This is a secondary analysis of data collected from the Pediatric Intensive Care Quality of Cardiopulmonary Resuscitation Study. Pediatric or Pediatric Cardiac Intensive Care Unit patients who received chest compressions for ≥1 min and who had invasive arterial BP monitoring were enrolled. Nighttime was defined as 11:00PM to 6:59AM and daytime as 7:00AM until 10:59PM. Primary outcome was attainment of DBP ≥ 25 mmHg in infants <1 year and ≥30 mmHg in older children. Secondary outcomes were mean DBP, ROSC, and survival to hospital discharge. Univariable and multivariate analyses evaluated the relationships between time (nighttime vs. daytime) and outcomes. Results: Between July 1, 2013 and June 30, 2016, 164 arrests met all inclusion/exclusion criteria: 45(27%) occurred at nighttime and 119(73%) during daytime. Average DBPs achieved were not different between groups (DBP: nighttime 28.3 mmHg[25.3, 36.5] vs. daytime 29.6 mmHg[21.8, 38.0], p = 0.64). Relative risk of DBP threshold met during nighttime vs. daytime was 1.27, 95%CI [0.80, 1.98], p = 0.30. There was no significant nighttime vs. daytime difference in ROSC (28/45[62%] vs. 84/119[71%] p = 0.35) or survival to hospital discharge (16/45[36%] vs. 61/119[51%], p = 0.08). Conclusions: In this cohort of pediatric ICU patients with IHCA, there was no significant difference in DBP during CPR between nighttime and daytime.

Original languageEnglish (US)
Pages (from-to)209-216
Number of pages8
StatePublished - Aug 2020

All Science Journal Classification (ASJC) codes

  • Emergency
  • Cardiology and Cardiovascular Medicine
  • Emergency Medicine


  • Cardiac arrest
  • Cardiopulmonary resuscitation (CPR)
  • In-Hospital
  • Outcomes
  • Pediatric
  • Survival


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